CA2137926A1 - Systeme de transmission comportant au moins un codeur - Google Patents

Systeme de transmission comportant au moins un codeur

Info

Publication number
CA2137926A1
CA2137926A1 CA002137926A CA2137926A CA2137926A1 CA 2137926 A1 CA2137926 A1 CA 2137926A1 CA 002137926 A CA002137926 A CA 002137926A CA 2137926 A CA2137926 A CA 2137926A CA 2137926 A1 CA2137926 A1 CA 2137926A1
Authority
CA
Canada
Prior art keywords
coder
transmission system
adaptive prediction
prediction filter
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002137926A
Other languages
English (en)
Other versions
CA2137926C (fr
Inventor
Rudolf Hofmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2137926A1 publication Critical patent/CA2137926A1/fr
Application granted granted Critical
Publication of CA2137926C publication Critical patent/CA2137926C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H21/0043—Adaptive algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002137926A 1993-05-05 1994-05-02 Systeme de transmission comportant au moins un codeur Expired - Fee Related CA2137926C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4314921 1993-05-05
DEP4314921.9 1993-05-05
PCT/IB1994/000087 WO1994025961A1 (fr) 1993-05-05 1994-05-02 Systeme de transmission comprenant au moins un codeur

Publications (2)

Publication Number Publication Date
CA2137926A1 true CA2137926A1 (fr) 1994-11-10
CA2137926C CA2137926C (fr) 2005-06-28

Family

ID=6487280

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002137925A Expired - Fee Related CA2137925C (fr) 1993-05-05 1994-05-02 Systeme de transmission comportant au moins un codeur
CA002137926A Expired - Fee Related CA2137926C (fr) 1993-05-05 1994-05-02 Systeme de transmission comportant au moins un codeur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002137925A Expired - Fee Related CA2137925C (fr) 1993-05-05 1994-05-02 Systeme de transmission comportant au moins un codeur

Country Status (12)

Country Link
US (2) US5751902A (fr)
EP (2) EP0649557B1 (fr)
JP (2) JP3509862B2 (fr)
KR (2) KR100346963B1 (fr)
CN (3) CN1131508C (fr)
CA (2) CA2137925C (fr)
DE (2) DE69420220T2 (fr)
ES (2) ES2138077T3 (fr)
RU (2) RU2123728C1 (fr)
SG (1) SG55188A1 (fr)
UA (2) UA41893C2 (fr)
WO (2) WO1994025961A1 (fr)

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JP3522012B2 (ja) * 1995-08-23 2004-04-26 沖電気工業株式会社 コード励振線形予測符号化装置
US6088445A (en) * 1997-08-01 2000-07-11 Crystal Semiconductor Corp. Adaptive filter system having mixed fixed point or floating point and block scale floating point operators
US5905659A (en) * 1997-10-07 1999-05-18 Rose; Ralph E. Training a recursive filter by use of derivative function
US5974434A (en) * 1997-10-07 1999-10-26 Ralph E. Rose Method and apparatus for automatically tuning the parameters of a feedback control system
US6012025A (en) * 1998-01-28 2000-01-04 Nokia Mobile Phones Limited Audio coding method and apparatus using backward adaptive prediction
US6014093A (en) * 1998-02-27 2000-01-11 Hayes; Adam T. Pulse coding system
DE19824104B4 (de) * 1998-04-27 2009-12-24 Abb Research Ltd. Nichtlinearer Widerstand mit Varistorverhalten
DE19845888A1 (de) * 1998-10-06 2000-05-11 Bosch Gmbh Robert Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder
RU2239867C2 (ru) * 1999-04-29 2004-11-10 Уолтер Э. ПЕЛТОН Устройство, способы и компьютерные программные продукты для определения коэффициентов функции с уменьшенной задержкой
WO2001052411A2 (fr) * 2000-01-07 2001-07-19 Koninklijke Philips Electronics N.V. Generation de coefficients pour un filtre de prevision dans un codeur
RU2248671C2 (ru) * 2000-12-25 2005-03-20 Корпорация "Самсунг Электроникс" Способ и устройство определения скорости передачи данных
DE60224796T2 (de) * 2001-05-02 2009-01-22 Koninklijke Philips Electronics N.V. Verfahren zur inversen filterung, verfahren zur synthesefilterung, entsprechende filterungsvorrichtungen und vorrichtungen mit solchen filterungsvorrichtungen
ES2280592T3 (es) * 2001-11-30 2007-09-16 Koninklijke Philips Electronics N.V. Codificacion de señal.
JP3748261B2 (ja) * 2003-06-17 2006-02-22 沖電気工業株式会社 Ａｄｐｃｍ方式復号器
US7640156B2 (en) * 2003-07-18 2009-12-29 Koninklijke Philips Electronics N.V. Low bit-rate audio encoding
EP1662667B1 (fr) * 2003-09-02 2015-11-11 Nippon Telegraph And Telephone Corporation Procede de codage reversible d'un signal en virgule flottante, procede de decodage, dispositif associe, logiciel et support d'enregistrement associe
JP2007519967A (ja) * 2004-01-28 2007-07-19 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 信号を時間スケーリングする方法及び装置
DE102004007185B3 (de) * 2004-02-13 2005-06-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Prädiktives Codierungsschema
US7392195B2 (en) * 2004-03-25 2008-06-24 Dts, Inc. Lossless multi-channel audio codec
US7961890B2 (en) * 2005-04-15 2011-06-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. Multi-channel hierarchical audio coding with compact side information
US7734466B2 (en) * 2005-06-20 2010-06-08 Motorola, Inc. Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares
DE102005039621A1 (de) * 2005-08-19 2007-03-01 Micronas Gmbh Verfahren und Vorrichtung zur adaptiven Reduktion von Rausch- und Hintergrundsignalen in einem sprachverarbeitenden System
US8195462B2 (en) * 2006-02-16 2012-06-05 At&T Intellectual Property Ii, L.P. System and method for providing large vocabulary speech processing based on fixed-point arithmetic
CN101406074B (zh) * 2006-03-24 2012-07-18 杜比国际公司 解码器及相应方法、双耳解码器、包括该解码器的接收机或音频播放器及相应方法
US9048784B2 (en) * 2007-04-03 2015-06-02 General Motors Llc Method for data communication via a voice channel of a wireless communication network using continuous signal modulation
CN101578655B (zh) * 2007-10-16 2013-06-05 松下电器产业株式会社 流合成装置、解码装置、方法
US8704186B2 (en) * 2009-11-17 2014-04-22 Lawrence Livermore National Security, Llc Active noise canceling system for mechanically cooled germanium radiation detectors
WO2011097199A2 (fr) * 2010-02-04 2011-08-11 Sony Corporation Filtres d'interpolation adaptatifs récursifs (raif)
KR101956284B1 (ko) * 2011-06-30 2019-03-08 엘지전자 주식회사 보간 방법 및 이를 이용한 예측 방법
LT3511935T (lt) 2014-04-17 2021-01-11 Voiceage Evs Llc Būdas, įrenginys ir kompiuteriu nuskaitoma neperkeliama atmintis garso signalų tiesinės prognozės kodavimui ir dekodavimui po perėjimo tarp kadrų su skirtingais mėginių ėmimo greičiais
EP3040852A1 (fr) * 2014-12-31 2016-07-06 Nxp B.V. Mise à l'échelle pour des données en virgule flottante par bloc
US12045724B2 (en) * 2018-12-31 2024-07-23 Microsoft Technology Licensing, Llc Neural network activation compression with outlier block floating-point
US12443848B2 (en) 2018-12-31 2025-10-14 Microsoft Technology Licensing, Llc Neural network activation compression with narrow block floating-point
US11562247B2 (en) 2019-01-24 2023-01-24 Microsoft Technology Licensing, Llc Neural network activation compression with non-uniform mantissas

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US3619586A (en) * 1968-11-25 1971-11-09 Research Corp Universal digital filter for linear discrete systems
US3842250A (en) * 1973-08-29 1974-10-15 Sperry Rand Corp Circuit for implementing rounding in add/subtract logic networks
US4509150A (en) * 1980-12-31 1985-04-02 Mobil Oil Corporation Linear prediction coding for compressing of seismic data
FR2515901A1 (fr) * 1981-11-04 1983-05-06 Trt Telecom Radio Electr Systeme de transmission mic-differentiel avec prediction adaptative
NL8304214A (nl) * 1983-12-07 1985-07-01 Philips Nv Werkwijze voor het korrigeren van foute waarden van monsters van een equidistant bemonsterd signaal en inrichting voor het uitvoeren van de werkwijze.
SU1305884A1 (ru) * 1985-02-22 1987-04-23 Ленинградский электротехнический институт связи им.М.А.Бонч-Бруевича Устройство декодировани дл системы передачи цифровых сигналов
US4831636A (en) * 1985-06-28 1989-05-16 Fujitsu Limited Coding transmission equipment for carrying out coding with adaptive quantization
SU1367164A1 (ru) * 1986-03-07 1988-01-15 Рязанский Радиотехнический Институт Декодер рекуррентной последовательности
SU1374243A1 (ru) * 1986-06-11 1988-02-15 Таганрогский радиотехнический институт им.В.Д.Калмыкова Устройство дл перебора сочетаний
US4872132A (en) * 1987-03-13 1989-10-03 Zoran Corporation Method and means for block floating point arithmetic
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
RU2012997C1 (ru) * 1990-11-11 1994-05-15 Юркин Юрий Анатольевич Адаптивный фильтр для оценивания нестационарных процессов
US5218621A (en) * 1991-04-04 1993-06-08 Motorola, Inc. Adaptive digital equalization filter

Also Published As

Publication number Publication date
CN1113332C (zh) 2003-07-02
JP3509862B2 (ja) 2004-03-22
UA41892C2 (uk) 2001-10-15
DE69420221D1 (de) 1999-09-30
HK1012750A1 (en) 1999-08-06
JP3509861B2 (ja) 2004-03-22
EP0649557A1 (fr) 1995-04-26
ES2138077T3 (es) 2000-01-01
CA2137925A1 (fr) 1994-11-10
KR100346963B1 (ko) 2002-11-13
JPH08501892A (ja) 1996-02-27
HK1019284A1 (en) 2000-01-28
WO1994025960A1 (fr) 1994-11-10
WO1994025961A1 (fr) 1994-11-10
DE69420220D1 (de) 1999-09-30
CA2137925C (fr) 2005-06-28
DE69420221T2 (de) 2000-07-06
CA2137926C (fr) 2005-06-28
CN1131508C (zh) 2003-12-17
ES2138076T3 (es) 2000-01-01
DE69420220T2 (de) 2000-07-06
CN1109263A (zh) 1995-09-27
US5751902A (en) 1998-05-12
RU2138030C1 (ru) 1999-09-20
EP0649558B1 (fr) 1999-08-25
SG55188A1 (en) 2000-03-21
RU2123728C1 (ru) 1998-12-20
CN1109264A (zh) 1995-09-27
EP0649558A1 (fr) 1995-04-26
CN1516496A (zh) 2004-07-28
KR950702730A (ko) 1995-07-29
EP0649557B1 (fr) 1999-08-25
UA41893C2 (uk) 2001-10-15
JPH08501891A (ja) 1996-02-27
KR100332850B1 (ko) 2002-10-18
CN1251176C (zh) 2006-04-12
US5657350A (en) 1997-08-12
KR950702731A (ko) 1995-07-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140502